Automatic closed-type screening device for corn grains

Abstract

The invention provides an automatic closed-type screening device for corn grains. The automatic closed-type screening device comprises a feeding device, a screening device body, a first pushing device, a second pushing device, a third pushing device, a first weight sensor, a second weight sensor and a control device, and the feeding device is used for quantitative feeding to the screening device body. The screening device body comprises a screening box, a first screening plate and a second screening plate, wherein the first screening plate and the second screening plate are arranged in the screening box, and a first movable door is arranged at the portion, close to the first screening plate, of the side wall of the screening box; a second movable door is arranged at the portion, close to the second screening plate, of the side wall of the screening box; a third movable door is arranged at the portion, close to a bottom plate of the screening box, of the side wall of the screening box; and the control device is connected with the feeding device, the first movable door, the second movable door, the third movable door, the first pushing device, the second pushing device, the first weight sensor and the second weight sensor and controls the movement of the feeding device, the first movable door, the second movable door, the third movable door, the first pushing device, the second pushing device, the first weight sensor and the second weight sensor. By means of the automatic closed-type screening device, the corn grains and grain stalks can be completely separated, the corn grains with different full degrees can be separated, and the work efficiency is high.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a closed automatic screening device for corn kernels. Background technique [0002] At present, after the corn is harvested and threshed, impurities such as husks and sand grains are often mixed in the corn, which affects the overall quality of the corn. There are usually two kinds of existing screening methods: one is the method of manual screening, which has the disadvantages of high labor intensity, high cost, low work efficiency, and low sieving clarity of corn; the other is the method of using a corn screening machine. The method has the disadvantage of high cost of purchasing the equipment due to the complex structure of the corn screening machine. In addition, due to the large amount of impurities in the corn, a large amount of dust will appear during the screening process, which will affect the health of the operators. Contents of the invention [0003] ...

AI Technical Summary

Problems solved by technology

[0002] At present, after corn is harvested and threshed, impurities such as hulls and sand are often mixed into the corn, which affects the overall quality of the corn.

There are usually two kinds of existing screening methods: one is the method of manual screening, which has the disadvantages of high labor intensity, high cost, low work efficiency, and low sieving clarity of co

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